It’s one thing to play the arcade game Whac-A-Mole by swinging around an oversized mallet; it’s far easier to whack those moles virtually, controlling the mallet with just your gaze.
That’s what I was doing on a recent rainy morning in the Milpitas, California, office of a startup called Eyefluence while wearing an Oculus virtual-reality headset. Eyefluence is building eye-tracking technology that it believes will be good enough to let you do anything in virtual reality, from hitting subterranean mammals to navigating different menus and apps, all by simply looking around.
Image: https://www.technologyreview.com/
